无法从 nodejs 服务器获取 res.json() 值

Question

I am using react.js as frontend and nodejs for the backend. My client-side code is

 export const updatePaymentDetails = (userId, token, paymentDetails) => { return fetch(`${API}/user/${userId}`, { method: "POST", headers: { Accept: "application/json", "Content-Type": "application/json", Authorization: `Bearer ${token}` }, body: JSON.stringify(paymentDetails) }).then(response => { console.log(response); return response.json(); }).catch(err => console.log(err)); };

And My server-side code is

 exports.updateUser = (req, res) => { User.findByIdAndUpdate( {_id: req.profile._id}, {$set: req.body}, {new: true, useFindAndModify: false}, (err, user) => { if(err) { return res.status(400).json({ error: "You are not authorized to update this user" }); } user.salt = undefined; user.encry_password = undefined; user.createdAt = undefined; user.updatedAt = undefined; console.log(user); return res.json(user); } ); };

Front-end output

In the server-side code, you can see that I am returning the res.json. but On the client-side, I am not getting the value that I have returned from the server.

Please, can anyone help me?

Answer 1

You need to add one more then(). when you call response.json() it also returns a promise apply a then call when you return response.json()